Australian players celebrate against New Zealand during their 4th T20I in Wellington on Friday. WELLINGTON: Australia crushed New Zealand by 50 runs in a low-scoring fourth Twenty20 international in Wellington Friday to level the series at 2-2. The result sets up a winner-takes-all blockbuster in the final match at the same venue on Sunday, with Australia in red-hot form after struggling early in the series. The Australians scored 156 for six in their 20 overs after winning the toss and electing to bat. In reply, New Zealand were all out for 106 after 18.5 overs. Captain Aaron Finch anchored the tourists’ innings with a gritty 79, making him Australia’s most prolific T20 international run scorer on 2,310, ahead of David Warner’s 2,265. Finch chiselled out his 14th T20 half-century off 55 balls before cutting loose with four sixes in the final over, in which Kyle Jamieson conceded 26 runs. But he struggled for partners as the Black Caps pinned back Australia’s batters with accurate bowling and a steady flow of wickets. Leg-spinner Ish Sodhi was the pick of the New Zealand bowlers, claiming three for 32. The Black Caps made a slow start, with openers Martin Guptill and Time Seifert managing just one boundary apiece in the opening three overs on a spin-friendly wicket. Guptill departed cheaply for seven but it was only the beginning of New Zealand’s woes as they lost a further six wickets for 30 runs. The collapse effectively ended the contest, despite some tail-end resistance from Jamieson, who top-scored for the Black Caps with 30.